Finding the Fourth Proportional to 155,162.18, 214,164.71 and 91,542.35

Step by Step Solution

1. Step 1: Write the proportion equation
   155,162.18 : 214,164.71 = 91,542.35 : x
2. Step 2: Convert to fraction form
   155,162.18/214,164.71 = 91,542.35/x
3. Step 3: Cross multiply
   155,162.18x = 214,164.71 × 91,542.35
4. Step 4: Simplify right side
   155,162.18x = 19,605,141,261.45
5. Step 5: Solve for x
   x = 19,605,141,261.45/155,162.18
6. Step 6: Final answer
   x = 126,352.57